Study of radiation damage in silicon detectors for high ... - F9

5. Dose Rate Dependence 87could be correlated to ux has been observed in this range neither in the eective dopingconcentration nor in the reverse bulk current. Results from [52] show thatachange occursat uxes around 10 7 ; 10 9 cm ;2 s ;1 for irradiations with heavier elements (Br, Si andC) and that this threshold is increasing with decreasing mass number. For neutrons onewould therefore expect a higher threshold, but even up to 5 10 15 n/cm 2 s no eect wasobserved. It thus seems safe to extrapolate the damage induced by available neutronsources to the expected ux at LHC of about 10 6 n/cm 2 s.